What is a vZEV for a PV system?

A virtual self-consumption community enables several consumption points to use locally generated PV electricity together even when they are not necessarily behind one house connection. In SAK’s model, the existing meters remain in service; SAK supplies metering data and issues the community one combined bill. The vZEV itself or a service provider performs internal billing.

Which requirements apply to a vZEV in Appenzell Ausserrhoden?

In the SAK grid area, every participant must be at the same grid connection point, be on grid level 7 and jointly reach PV capacity of at least 10% relative to connection capacity. Written consent from the parties and a functioning metering and billing solution are also required. The SAK participant check clarifies the specific connection structure.

Do tenants need to consent to a vZEV?

Yes. For rented or leased properties, SAK requires written consent from both owners and tenants or leaseholders for a vZEV. Obtain consent before registration because it is part of the community’s contractual basis. Internal electricity billing should not start without this arrangement.

Who issues the bill in a vZEV?

SAK bills the vZEV, as the remaining customer, for grid supply and feed-in. The vZEV representative or an appointed service provider allocates electricity and invoices each participant. The collection risk therefore sits with the community, not with SAK.

How do I register a vZEV with SAK?

Use the SAK form only when the generation system is in operation, registered with SAK and all required documents are available. The form guides registration and participant information. Incomplete or erroneous submissions are rejected and must be filed again.

When does a vZEV start after SAK registration?

SAK opens the vZEV on the first day of the following month after the fully signed agreement has been returned and technical requirements are met. Smart meters are expressly among these requirements. Do not schedule the first internal billing before this confirmed contract start.

Does a vZEV replace PV grid registration or a building permit?

No. A vZEV governs self-consumption, metering and internal billing. The PV system still needs the separate technical process with the grid operator; in Appenzell Ausserrhoden, planning-law notification or approval also depends on the site and system. Both processes must be aligned with the vZEV timeline.

vZEV photovoltaics Appenzell Ausserrhoden: requirements

vZEV photovoltaics in Appenzell Ausserrhoden are possible in the SAK grid area when all participants are at the same grid connection point on grid level 7 and PV capacity reaches at least 10% of connection capacity. Unlike a conventional ZEV, the grid operator’s existing meters remain in place and billing is represented virtually through metering data. A vZEV can also include several house connections if they share the same grid connection point. Before registration, SAK requires written consent from owners and, for rented properties, from tenants or leaseholders as well. Once the agreement is complete and signed, SAK opens the vZEV on the first day of the following month if technical requirements such as smart meters are met.

Contents

Short answer Decision points Sequence Checklist FAQ Sources

Short answer

What you need to know first.

In Appenzell Ausserrhoden, a vZEV enables shared PV self-consumption through SAK metering when all participants are at the same grid connection point on grid level 7 and PV reaches at least 10% of connection capacity. Consents, the agreement and internal billing must be settled before registration; SAK opens the community on the first day of the following month after receiving the complete agreement.

Important

As of 22 July 2026, the stated 10%, grid-level-7, smart-meter and agreement requirements come from the SAK process and apply only in SAK’s grid area. The participant check and current agreement review for the specific property are binding; a vZEV replaces neither the PV grid registration nor planning-law review.

Decision points

What determines the right path.

The grid connection point is the first hard boundary: SAK requires every vZEV participant to share the same grid connection point. Several buildings are possible, but proximity without a shared connection point is insufficient.

Grid level 7 must apply to every participant: SAK expressly names this level alongside the shared grid connection point as a requirement. Before committing to the model, the participant check must confirm the actual connection structure.

Generation capacity is a measurable decision: SAK requires PV capacity of at least 10% relative to grid connection capacity. Generator capacity and connection data must therefore be calculated against each other before preparing the agreement.

A vZEV is not merely a ZEV under a different name: in a vZEV, SAK meters remain in place and SAK issues one combined bill; in a conventional ZEV, internal metering and billing use private meters behind a shared house connection.

Consent is a contractual requirement: for a vZEV, SAK requires written consent from owners and, where properties are rented, from tenants or leaseholders. Without these documents, the application cannot be treated as a complete community.

Billing remains with the community: SAK provides 15-minute metering data and bills grid supply and feed-in as one combined bill. Internal allocation, invoicing and collection risk sit with the vZEV representative or an appointed service provider.

Sequence

How the project stays cleanly managed.

1
Record the grid area and connection pointsfirst determine whether the property is in SAK’s grid area. Then use the SAK participant check to verify the shared grid connection point and grid level 7 for every consumption point.
2
Compare PV and connection capacitydetermine the planned generator capacity and the community’s grid connection capacity. An SAK vZEV reaches the minimum threshold only from 10% PV capacity; below it, another concept must be assessed before registration.
3
Set the model and rolesdistinguish the vZEV using existing SAK meters from a conventional ZEV behind one house connection. At the same time, designate the contact person who acts toward SAK and receives the combined bill.
4
Prepare consents and billingobtain written consent from owners and, for rented properties, tenants or leaseholders. Before applying, determine who processes the 15-minute metering data, issues invoices and handles collection.
5
Register completely with SAKsubmit the application only when the generation system is in operation, registered with SAK and all required documents are complete. The SAK form returns incomplete information for resubmission.
6
Coordinate contract start and meteringafter receiving the fully signed agreement, SAK opens the vZEV on the first day of the following month provided technical requirements such as smart meters are met. Align this date with PV operation and the first internal billing cycle.

Checklist

Questions to settle before the quote.

Use the SAK participant check to verify that all properties share the same grid connection point
Match PV capacity of at least 10% of connection capacity against the connection data
Obtain written consent from owners as well as tenants or leaseholders before registration
Set internal billing, 15-minute metering data and the responsible contractual party clearly

FAQ

Common questions on this topic.

Sources

Official sources & references.

The responsible authorities are decisive. Always verify binding details – amounts, deadlines and conditions – for your specific property against the current status of the respective authority.

vZEV photovoltaics Appenzell Ausserrhoden: requirements

What you need to know first.

What determines the right path.

How the project stays cleanly managed.

Questions to settle before the quote.

Common questions on this topic.

Official sources & references.

Relevant pages for the next step.

Solar Installation Appenzell Ausserrhoden – Planning to Commissioning

Assessing PV economics in Canton Zug correctly

PV Installation Appenzell Ausserrhoden – Roof & Electrical

Self-consumption, vZEV and LEG in Schaffhausen: using solar power correctly

Solar system installation

vZEV and local electricity communities: planning PV self-consumption in Schaffhausen